The Kratt Master Key Chromatic Pitch Pipe Instrument is a tuner designed for musical instruments. With 13 keys and a black color, this pitch pipe is suitable for tuning purposes in various musical settings. Made from a combination of plastic and metal, this Kratt Master MK2-C model is compact and can be easily stored in its included box. Ideal for musicians looking for a reliable tool to help them achieve accurate tuning, this pitch pipe is a practical accessory for any musical lineup.